Jawaban:
L = πr²
L = 22/7 × (21)²
L = 1.386 cm2
L = π x r x r
L = 22/7 x 21cm x 21cm
L = 1.386cm²
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Jawaban:
L = πr²
L = 22/7 × (21)²
L = 1.386 cm2
Jawaban:
L = π x r x r
L = 22/7 x 21cm x 21cm
L = 1.386cm²